Serial I/O - ICSDataCom

Serial I/O
Connect RS422/485 Networks to PC COM Ports:
RS232 to RS422/485 Converters ■ 485HF/HM series
■ Interface Conversion:
• Ideal low cost RS232 to RS422/RS485 converters for 4-wire
systems or where the RS232 or an external TX enable signal
will be used to disable the transmitter in 2-wire applications.
• All models have a removable screw type terminal strip for easy
connection to your RS422 or RS485 cable. Includes TX and
RX signal pairs, power and external TX enable signal.
■ Models:
• Model 485HF25 has 25-pin female connector for direct plug
in to PC COM ports.
• Model 485HM25 has a 25-pin male connector for DCE type
devices.
• Model 485F9 has 9-pin female connector for direct plug in to
9-pin PC COM ports.
Ordering Code:
485HF25 99.00 $
RS232 to RS422/RS485 Converter with female DB-25 connector. Includes US
115 VAC power adapter and manual on CD-ROM
485HM25 99.00 $
RS232 to RS422/RS485 Converter with male DB-25 connector. Includes US
115 VAC power adapter and manual on CD-ROM
485HF9 99.00 $
RS232 to RS422/RS485 Converter with female DE-9 connector. Includes US
115 VAC power adapter and manual on CD-ROM
Web: www.icsdatacom.com
Specifications:
485HF25, HM25, HF9
Data Com
Input voltage Space or On +2.4 to +30 V
Mark or Off -30 to +0.8 V
Input impedance 5 kohm typical
RS232
Output Volt +9 to -9 V
RS485
Output 1.5 V into 27 ohm (32 receivers)
Termination Internal Receiver Termination 120 ohm when jumper set to ‘in’
Data rate >1 Mbaud up to 1,200 meters
General
Power
+5 to +12 VDC at 50 mA typ, 100 mA max.
Temperature 0 to 60°C operating, -20 to +70°C storage
Dimensions 67 x 53 x 20mm (L x W x H)
54 Amplicon Liveline Data COM Products